Answer:
-2
Step-by-step explanation:
3n+2n+4=9n+12
5n+4=9n+12
5n-9n=-4+12
-4n=8
n=8/-4
n= -2
the answer is a
books < 20
(0,5)
x,y
13 1/3 divided by 2 2/3
= 40/3 /8/3= 5
Hope that helps!